Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52F07SW00007

Record: MDI52F07SW00007

General

Mineral Record Identification
Record Name(s) Gaffney Prospect - 1904, Manitou Island - 1904
Related Record Type Simple
Related Record(s)
Record Status Developed Prospect With Reported Reserves or Resources
Date Created 1983-May-26
Date Last Modified 2022-Apr-20
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Lower Manitou Lake Area

Latitude: 49° 16' 5.74"    Longitude: -92° 58' 13.22"

UTM Zone: 15    Easting: 502157.732   Northing: 5457278.359    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52F07SW

Point Location Description: Precise

Location Method: Conversion from MDI

Access Description: The Gaffney prospect is located 57 km south-southwest of Dryden, midway along the southeast shore of Manitou Island of Lower Manitou Lake. Access to the prospect is via motor boat or float plane. The prospect consists of two pits and 26 trenches. (OFR 5731, p. 58-64; 1990)



Exploration History

1904-1905: Mike Nooman sunk a 37.5 feet deep shaft on a quartz vein (Assessment File 52F/07 SW, EE-1, Resident Geologist's Office, Kenora), now filled in but probably at the intersection of Zone C and the northeast trending felsic dike. 1927-1928:Anglo-Canadian Explorers Ltd. opened up 15 trenches uncovering several quartz veins and a zone of sulphides over a length of 900 feet. The claims were allowed to come open in 1928 (Assessment Files, 52F/07 SW, EE-1, Resident Geologist's Office, Kenora). 1928: Frank Gaffney re-staked the claims and organized the Manitou Island syndicate (Assessment File: 52F/07 SW, EE-1, Resident Geologist's Office, Kenora). He collected a number of samples, all of which returned gold values on assay, the best being 2.07 ounces of gold per ton (Assessment File 52F/07 SW, EE-1, Resident Geologist's Office, Kenora). 1931: Claims came open and were restaked by F. Gaffney (Thomson 1933). 1933 - 1934: Property optioned by D.H. Angus. Six holes were diamond drilled for a total footage of 1506 feet (Assessment File 52F/07 SW, E-l, Resident Geologist's Office, Kenora), and thirty samples of the core sent for assay. The best result was 0.29 ounce of gold per ton over 5 feet from hole #1. Resampling and assaying of the trenches was also done. The best chip sample across 5 feet assayed 0.91 ounces of gold per ton in trench #8 (Assessment File 52F/07 SW, CC-1, Resident Geologist's Office, Kenora). A chip sample taken by Thomson (1933) across 12 feet of sulphide material from pit #1 assayed 1.48 ounces gold per ton. 1937: Gaffney Mines Ltd. diamond drilled fourteen holes for a total footage of 1651 feet, to test beneath several trenches to a depth from fifty to one hundred feet. The best assay from core samples yielded 0.54 ounce of gold per ton over 11 feet in hole #12. (Assessment Files 52F/07 SW, E-l, Resident Geologist's Office, Kenora). 1943: The property was optioned by Sylvanite Gold Mines from Frank Gaffney. 1944-1945: Twenty-one holes were diamond drilled by Sylvanite Gold Mines for a total footage of 3100 feet. The deepest holes tested 200 feet below Zones A and B (Assessment Files 52F/07 SW, EE-1, Resident Geologists's Office, Kenora). 1983-1984:Teck Corporation purchased the patented ground. With their joint venture partner Noxe Petroleum Corporation they conducted magnetic, VLF-electromagnetic, and geological surveys, and diamond drilled 21 holes totalling 2,738 m (Assessment Files 52F/07 SW, Y-2, Resident Geologist's Office, Kenora). The best intersection assayed 0.157 ounce of gold per ton over 20.5 m (The Northern Miner, December 14, 1987). 1987:Teck Corporation and San Paulo Exploration Inc. diamond drilled 7 holes (The Northern Miner, May 9, 1988).


Geology

Province: Superior

Subprovince: Wabigoon

Terrane: Western Wabigoon

Belt: Eagle-Wabigoon-Manitou

Geological Age: Precambrian  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Quartz-Rich Granitoid 1 Adjacent
Vein 2 Contains

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
5ChalcopyriteEconomicOre
10GoldEconomicOre
15PyriteEconomicOre

Mineralization Comments

Dec 10, 2009 (D Scholtz) - GRADE - HIGHEST ASSAYS: 0.157 OPT AU/20.5M, 0.91 OPT AU/1.5 M, 0.54 OPT AU OVER 3.4 M,



Mineral Record Details

Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Manitou Island 1990 Probable 300000 Canadian Mines Handbook 1990-91 p393 Gold 0.15 oz/T

References

Book - Northern Miner 88-03-07, San Paulo, p. A24

Publication Number: NMINER Date: 1996

Author:

Publisher Name: Northern Miner

Location:


Book - Northern Miner 88-05-09, San Paulo

Publication Number: NMINER Date: 1996

Author:

Publisher Name: Northern Miner

Location:


Part - Geology of the Manitou-Stormy lakes area

Publication Number: ARV42-04.001 Page: 27-31  Date: 1998

Author: Thomson J.E.

Publisher Name: Ontario Dept. of Mines

Location:


MonoMap - Geology of the Lower Manitou-Uphill lakes area, District of Kenora

Publication Number: R142 Page: 60-63  Date: 1976

Author: Blackburn C.E.

Publisher Name: Ontario Division of Mines

Location:


Mono - Gold deposits of the Kenora-Fort Frances area, districts of Kenora and Rainy River

Publication Number: MDC016 Page: 26  Date: 1976

Author: Beard R.C., Garratt G.L.

Publisher Name: Ontario Division of Mines

Location:


Mono - Feasibility of small scale gold mining in northwestern Ontario (parts of the districts of Kenora, Rainy River, and Thunder Bay), volume 1, text, volume 2, appendices

Publication Number: OFR5332 Page: 36-37  Date: 1981

Author: Neilson J.N., Bray R.C.E.

Publisher Name: Ontario Geological Survey

Location:


Mono - Property visits by the Dryden area mineral commodity geologist, 1989

Publication Number: OFR5731 Page: 58-64  Date: 1990

Author: Delisle P.C.

Publisher Name: Ontario Geological Survey

Location:


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For detailed information regarding this mineral record please contact the Kenora Resident Geologist District Office